Tennis ball bag



FIG. 1 is a front elevational view of a tennis ball bag embodying my design;

FIG. 2 is a rear perspective view of the tennis ball bag as shown in FIG. 1;

FIG. 3 is a right side perspective view of the tennis ball bag as shown in FIG. 1; and,

FIG. 4 is a left side perspective view of the tennis ball bag as shown in FIG. 1. 

The ornamental design for a tennis ball bag, as shown and described. 